<http://schema.org/description>
"With the new iTunes in the Cloud service, users can re-download all applications that were once purchased, including software that is no longer publicly available on the App Store."^^<http://www.w3.org/2001/XMLSchema#string>
<http://appleinsider.com/articles/11/06/09/itunes_in_the_cloud_allows_re_downloading_of_apps_apple_removed_from_app_store>